If you hold Bitcoin without selling it, you will definitely earn income from it, but it will not be within a specific period of time. If you calculate the income every month, then in some months you may be in loss and in some months you may be in much profit. It will never guarantee you a specific amount and a specific time. Therefore, it cannot be considered as passive income, but it is virtually one of the few investment mediums from which it is possible to easily make several times the profit of your investment if you do not sell Bitcoin and keep it for a long time. Because even if you do not get profit from Bitcoin in a short time or after a specific period of time, if you can keep it for a few years, then you will definitely get a very big profit from it, this can be guaranteed.